• Title/Summary/Keyword: 페놀성화합물

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Characteristics of Newly Bred Lentinula edodes Cultivar 'Hwadam' for Sawdust Cultivation (표고 톱밥재배용 신품종 '화담' 육성 및 특성)

  • Kim, Jeong-Han;Kang, Young-Ju;Baek, Il-Sun;Shin, Bok-Eum;Choi, Jong-In;Lee, Yong-Seon;Lee, YunHae;Jeoung, Yun-Kyeoung;Lee, Young-Soon;Chi, Jeong-Hyun;Jung, Gu-Hyun
    • The Korean Journal of Mycology
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    • v.48 no.2
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    • pp.125-133
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    • 2020
  • A new oak mushroom cultivar 'Hwadam' was bred from monokaryotic strains of 'GMLE36062' and 'LE15401'. The optimum temperature for mycelial growth of 'Hwadam' on potato dextrose agar was 25℃. The cultivation period of 'Hwadam' lasted for 129 days until the first harvest of the fruiting bodies, including 35 days for spawn run, 84 days for browning, and 10 days for development of fruiting bodies. The fruiting bodies of 'Hwadam' had a hemispherical, brighter pileus and thicker stipe than the control cultivar (Sanjo 701ho). The three-cycle yield of 'Hwadam' was 554 g, which was higher than that of control cultivar (405 g). In addition, 'Hwadam' contained 79.4 mg/g of beta-glucan and 0.93 mg GAEs/g of phenolic compounds, which was similar to that of the control cultivar but higher than that of 'L808' and 'Chujae 2ho'.

Optimization of Extraction Condition on Fig (Ficus carica L.) by Response Surface Methodology (반응표면분석법에 의한 무화과 열수 추출조건의 최적화)

  • Kim, Jung-Ok;Kwon, Soon-Tae;Lee, Gee-Dong;Hong, Joo-Heon;Moon, Doo-Hwan;Kim, Tae-Wan;Kim, Dae-Ik
    • Food Science and Preservation
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    • v.15 no.1
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    • pp.66-73
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    • 2008
  • Response surface methodology (RSM) was applied for monitor the yields of desirable substances from fig (Ficus carica L) under different extraction conditions. The maximum yield was 66.46% at 22.08 mL/g of solvent to sample ratio, $90.59^{\circ}C$ extraction temperature and 148.04 min extraction time. The maximum total phenolics was $121.31{\mu}g/mL$ at 17.87 mL/g, $98.82^{\circ}C$, and 130.80 min. The maximum electron donating ability was 54.09% at $121.31{\mu}g/mL$, 18.13 mL/g, and $98.81^{\circ}C$. The maximum value of protease activity was 54.51 unit/min at 17.45 mL/g, $99.01^{\circ}C$, and 131.43 min. In addition, the maximum value of reducing sugar content was 19.14 mg/mL in 22.66 mL/g, $86.30^{\circ}C$, and 153.59 min. The optimum conditions estimated by RSM for maximal extraction of the effective components were $17{\sim}25$ mL/g of solvent to sample ratio, $80{\sim}100^{\circ}C$ of extraction temperature, and $100{\sim}170$ min of extraction time.

Neuronal Cell Protective Effects of Methanol Extract from Cheonggukjang Using in vitro System (In vitro system에서 청국장 메탄올 추출물의 신경세포 보호효과)

  • Jeong, Chang-Ho;Kwak, Ji-Hyun;Kim, Ji-Hye;Choi, Gwi-Nam;Jeong, Hee-Rok;Heo, Ho-Jin
    • Korean Journal of Food Science and Technology
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    • v.42 no.6
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    • pp.768-772
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    • 2010
  • In this study, the neuronal cell protective effects of methanol extract from cheonggukjang were evaluated. The proximate composition and total phenolics of the methanol extract were 40.95% crude protein, 22.49% crude fat, 15.99% nitrogen free extract, 7.91% moisture, 6.74% crude ash, 5.92% crude fiber, and 28.43 mg/g of total phenolics. Intracellular ROS accumulation resulting from $H_2O_2$ treatment of PC12 cells was significantly reduced when methanol extract was present in the media compared to PC12 cells treated with $H_2O_2$ only. In a cell viability assay using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium-bromide (MTT), the methanol extract showed protective effects against $H_2O_2$-induced neurotoxicity, and lactate dehydrogenase (LDH) release into the medium was also inhibited. Furthermore, the inhibitory effect of the methanol extract against acetylcholinesterase was dose-dependent.

Antioxidative Activity and Chemical Characteristics of Cordycepin-enriched Cordyceps militaris JLM0636 Powder (Cordycepin 고함유 Cordyceps militaris JLM0636 용매별 추출물의 이화학적 특성 및 항산화 효과)

  • Ahn, Hee-Young;Cha, Jae-Young;Jeong, Yong-Kee;Cho, Young-Su
    • Journal of Life Science
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    • v.23 no.2
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    • pp.249-258
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    • 2013
  • The antioxidative activity and bioactivity of water, ethanol, and methanol extracts from Paecilomyces japonica (PJ), Cordyceps militaris (CM), and cordycepin-enriched C. militaris JLM0636 ($CM{\alpha}$) were tested in in vitro experimental models. The PJ water extract showed the highest extraction yield (42.53%). The highest content of phenolic compounds and flavonoids were found in the water extract of PJ, 2.72% and 1.73%, respectively. The major minerals were K, Mg, and Ca. The water extracts of PJ also showed the highest DPPH free radical scavenging activity and reducing power. Linoleic acid peroxidation and antioxidative activities were strong in $CM{\alpha}$. The methanol extracts of PJ showed the highest inhibition activity against tyrosinase. Fibriolytic activity was higher in $CM{\alpha}$ than in CM. These results may provide basic data to understand the biological activities of bioactive materials derived from $CM{\alpha}$ for the development of functional foods, cosmetics, and antithrombotics.

Effect of sweeteners on the quality characteristics of ginger (Zingiber officinale Rosc) Jungkwa (감미료가 생강정과의 품질특성에 미치는 영향)

  • Lee, Yeong-Min;Lee, Hyeon-Jeong;Cho, Jeong-Seok;Choi, Ji-Young;Woo, Jin-Ho;Moon, Kwang-Deog
    • Food Science and Preservation
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    • v.24 no.3
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    • pp.406-412
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    • 2017
  • In this study the physicochemical properties and antioxidant capacities of ginger (Zingiber officinale Rosc) Jungkwa with different kinds of sweeteners were determined. Jungkwa made with different sugars (sugar, xylitol, honey or oligosaccharides) were compared in aspect of physiochemical properties, antioxidant activities, total phenolic contents and sensory evaluation. Moisture contents Jungkwa treated different kinds of oligosaccarides showed highest value, in the order of honey, xylitol and sugar. $L^*$ value of Jungkwa treated with xylitol was the highest, $a^*$ value of Jungkwa treated with honey, sugar JungKwa were higher then others. Free sugar contents of Jungkwa treated with sugar showed the highest value in sucrose, glucose and galactose. Jungkwa with xylitol showed lowest value in all free sugar contents. Hardness and chewiness of Jungkwa treated with xylitol showed the highest value. The antioxidant activity measured by DPPH and ABTS radical scavenging activity and total penolic content were the highest in Jungkwa treated with honey, followed by Jungkwa treated with xylitol, oligosaccharides and sugar. Appearance and color of oligosaccarides and honey treated Jungkwa were preferred. In ginger taste, sweetness, chewiness were highest in sugar treated Jungkwa (not significant difference in treatments). As a result, honey treated Jungkwa has higher antioxidant activity and quality than other sugar treatments.

Analysis of antioxidant and anti-inflammatory effects of Mongolian wild lingonberry and blueberry, and identification of their bioactive compounds (몽골 야생 링곤베리와 블루베리의 항산화, 항염증 효과 및 생리활성 물질 분석 연구)

  • Lee, Hye Ju;Naranbulag, Batdorj;Jeong, Seung Jin;Seo, Chan;Lee, Sang-Gil
    • Korean Journal of Food Science and Technology
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    • v.54 no.2
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    • pp.147-154
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    • 2022
  • The Mongolian lingonberry and blueberry are two essential food sources found in Mongolia. This study investigated the antioxidant and anti-inflammatory effects of methanol extracts from Mongolian lingonberry (LBE) and blueberry (BBE). Compared to the LBE, the BBE showed higher total phenolic, flavonoid, and anthocyanin contents, as well as antioxidant capacities. The LBE and BBE inhibited the mRNA expression of pro-inflammatory genes, including tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and cyclooxygenase (COX-2) in lipopolysaccharide-stimulated RAW 264.7 macrophage cells. In addition, the LBE and BBE inhibited NADPH oxidase-2 (Nox2) mRNA expression, indicating that they have cellular antioxidant capacities. Anthocyanin derivatives of the LBE and BBE were analyzed using LC-QTOF/MS. Six anthocyanins were identified in the BBE, while one was detected in the LBE. Our findings demonstrate that the anthocyanin-rich LBE and BBE could be used as functional food sources in Mongolia.

Preparation of Bio-oil from Ginkgo Leaves through Fast Pyrolysis and its Properties (은행잎 바이오매스로부터 급속 열분해를 통한 바이오-오일 생산 및 특성 연구)

  • In-Jun Hwang;Jae-Rak Jeon;Jinsoo Kim;Seung-Soo Kim
    • Clean Technology
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    • v.29 no.3
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    • pp.200-216
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    • 2023
  • Ginkgo leaves are considered waste biomass and can cause problems due to the strong insecticidal actions of ginkgolide A, B, C, and J and bilobalide. However, Ginkgo leaf biomass has high organic matter content that can be converted into fuels and chemicals if suitable technologies can be developed. In this study, the effect of pyrolysis temperature, minimum fluidized velocity, and Ginkgo leaf size on product yields and product properties were systematically analyzed. Fast pyrolysis was conducted in a bubbling fluidized bed reactor at 400 to 550℃ using silica sand as a bed material. The yield of pyrolysis liquids ranged from 33.66 to 40.01 wt%. The CO2 and CO contents were relatively high compared to light hydrocarbon gases because of decarboxylation and decarbonylation during pyrolysis. The CO content increased with the pyrolysis temperature while the CO2 content decreased. When the experiment was conducted at 450℃ with a 3.0×Umf fluidized velocity and a 0.43 to 0.71 mm particle size, the yield was 40.01 wt% and there was a heating value of 30.17 MJ/kg, respectively. The production of various phenol compounds and benzene derivatives in the bio-oil, which contains the high value products, was identified using GC-MS. This study demonstrated that fast pyrolysis is very robust and can be used for converting Ginkgo leaves into fuels and thus has the potential of becoming a method for waste recycling.

Study on the Physiological Activity of Chrysanthemum indicum Flower Extracts Using the Hydrothermal Water Extraction Method (감국꽃 열수 추출물의 생리활성에 관한 연구)

  • Jisung Ha;Yuri Kang;Woonjung Kim
    • Industry Promotion Research
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    • v.9 no.3
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    • pp.77-85
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    • 2024
  • In this study, the hydrothermal extract of Chrysanthemum indicum Flowers are analyzed for the identification of its functional material value. Various aromatic compounds were detected as a result of GC-MS analysis, and antioxidant analysis confirmed the high antioxidant activity of the extract. High antibacterial activity was confirmed in the TIME KILL TEST using the 70% ethanol extract, which showed the highest activity, and the inhibition of intracellular melanogenesis was confirmed to be 115.77 ± 6.67%, 112.42 ± 1.64%, and 67.12 ± 3.89% compared to the α-MSH treatment group at concentrations of 1%, 1.2%, and 1.5%, respectively, when the extract was treated with 1%, 1.2%, and 1.5%. Collagenage activity inhibition assay showed collagenase inhibition of 56.57 ± 2.28%, 58.64 ± 2.99 and 29.53 ± 1.03% when treated at concentrations of 1.5%, 3% and 5%. The cytotoxicity test of the extract showed no cytotoxicity at concentrations of 1.5%, 3% and 5%. Therefore, this study predicts that the hydrothermal extract of Chrysanthemum indicum Flowers will be useful as a functional cosmetic material.

Anti-oxidative Activities of Commercial Edible Plant Extracts Distributed in Korea (국내 유통 중인 식용식물 추출물의 항산화효과)

  • Kim, Kyung-Bum;Yoo, Ki-Hwan;Park, Ha-Yan;Jeong, Jong-Moon
    • Applied Biological Chemistry
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    • v.49 no.4
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    • pp.328-333
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    • 2006
  • Many plant extracts are known to have antioxidative effects. However, their activities can be reduced or disappeared during mass production process. The purpose of this study is to compare antioxidative effects of edible plant extracts distributed in Korea. forty three kinds of edible plant extracts commercially available in Korea were selected and investigated for their total phenolics contents and antioxidative potentials(DPPH radical and superoxide anion radical scavenging activities). In contents of total phenolics, the commercial plant extracts from Artemisia annua(whole plant), Ilex paraguariensis(leaf, Silybum marianum(fruit and leaf, Ulmus pumila(bark), Coliolus versicolor(fruit), and Curcuma longa(root and stem) contained over 70 mg/g of powder, DPPH radical scavenging activities($SC_{50}$, 50% scavenging concentration) of A. annua, I. paraguariensis, Pinus densiflora(leaf),S. marianum, U. pumila, and C. longa were $53.96{\pm}0.81\;ppm,\;24.61{\pm}2.12\;ppm,\;35.96{\pm}1.11\;ppm,\;57.46{\pm}2.13\;ppm,\;55.25{\pm}1.65\;ppm\;and\;12.99{\pm}1.67ppm$, respectively, while that of positive control(vitamin C) was $3.86{\pm}0.81\;ppm$. $SC_{50}$ values against superoxide anion radical of A. annua, Cinnamomum zeylanicum(bark), I. paraguariensis, Rubus coreanus(fruit and leaf), Morus alba(leaf), P. densiflora, S. marianum, U. pumila, C. versicolor, C. longa, Perilla frutescens var. acuta(leaf), and H. sabdariffa(leaf and newer) were $53.21{\pm}1.83ppm,\;50.12{\pm}2.12ppm,\;5.59{\pm}0.84ppm,\;41.60{\pm}8.93ppm,\;20.19{\pm}0.97ppm,\;15.19{\pm}1.66ppm,\;21.20{\pm}1.88ppm,\;15.71{\pm}0.91ppm,\;55.48{\pm}2.42ppm,\;52.12{\pm}2.44ppm,\;23.80{\pm}1.98ppm\;and\;11.14{\pm}0.51ppm$, respectively($SC_{50}$ value of vitamin C: $9.61{\pm}0.93ppm$). In particular, both 1 paraguariensis and P. densiflora had high content of phenolics as well as high scavenging activities of DPPH radical and superoxide anion radical. Consequently, above two commercial extracts may be useful as a source of antioxidative nutraceutics.

Effects of Gamma Irradiation on Color Changes and Antioxidative Activities of Caesalpinia sappan L. (감마선 조사에 의한 소목추출물의 색상변화 및 항산화 활성 평가)

  • Kwon, Hyung-Jun;Jung, U-Hee;Park, Hae-Ran;Shin, Dong-Hwa;Jo, Sung-Kee
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.36 no.8
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    • pp.1055-1061
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    • 2007
  • Caesalpinia sappan L. is an indeciduous tree distributed in China, India, Miyanmar and Vietnam. Its heartwood has long been used in oriental folk medicines to treat diseases. In this study, antioxidative activities of Caesalpinia sappan L. and the effect of gamma irradiation on its chemical and biological properties were investigated. The ethyl acetate fraction (EtOAc fr.) of Caesalpinia sappan L. was irradiated with 100 kGy of gamma ray. The dark red color of EtOAc fr. was significantly (p<0.05) removed by irradiation (Hunter L and b values increased and a value decreased). The total phenolic content of EtOAc fr. was 865 mg/g and it was increased to 1195 mg/g by gamma irradiation. DPPH radical and superoxide anion radical scavenging activities and lipid peroxidation inhibitory activity of EtOAc fr. were very high and its activities were also increased by gamma irradiation. EtOAc fr. also inhibited the irradiation-induced DNA damage of lymphocyte as determined by comet assay. In conclusion, EtOAc fr. of Caesalpinia sappan L. extract showed high antioxidative activities in vitro. Furthermore, gamma irradiation on EtOAc fr. ameliorated the color and antioxidative properties. Therefore, it can be suggested that Caesalpinia sappan L. may be a good material for antioxidant function and gamma irradiation may be applied for the improvement of chemical and biological properties of Caesalpinia sappan L.